package com.pjt.xianyu.SMS;

//接口类型：互亿无线触发短信接口，支持发送验证码短信、订单通知短信等。
// 账户注册：请通过该地址开通账户http://sms.ihuyi.com/register.html
// 注意事项：
//（1）调试期间，请用默认的模板进行测试，默认模板详见接口文档；
//（2）请使用APIID（查看APIID请登录用户中心->验证码短信->产品总览->APIID）及 APIkey来调用接口；
//（3）该代码仅供接入互亿无线短信接口参考使用，客户可根据实际需要自行编写；

import java.security.MessageDigest;

public class StringUtil {

    public static String str;
    public static final String EMPTY_STRING = "";
    public static  String PHONE = "";

    private final static String[] hexDigits = { "0", "1", "2", "3", "4", "5",
            "6", "7", "8", "9", "A", "B", "C", "D", "E", "F" };

    private static String byteToHexString(byte b) {
        int n = b;
        if (n < 0)
            n = 256 + n;
        int d1 = n / 16;
        int d2 = n % 16;
        return hexDigits[d1] + hexDigits[d2];
    }

    /**
     * 转换字节数组为16进制字串
     * @param b 字节数组
     * @return 16进制字串
     */
    public static String byteArrayToHexString(byte[] b) {
        StringBuffer resultSb = new StringBuffer();
        for (int i = 0; i < b.length; i++) {
            resultSb.append(byteToHexString(b[i]));
        }
        return resultSb.toString();
    }

    public static String MD5Encode(String origin) {
        String resultString = null;
        try {
            resultString = new String(origin);
            MessageDigest md = MessageDigest.getInstance("MD5");
            resultString = byteArrayToHexString(md.digest(resultString
                    .getBytes()));
        } catch (Exception ex) {
        }
        return resultString;
    }

}
